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发明名称
Procédé et dispositif de démandrinage à air comprimé des tuyaux en fibro-ciment produits avec des machines en rond et analogues
摘要
申请公布号
FR1145033(A)
申请公布日期
1957.10.21
申请号
FRD1145033
申请日期
1956.04.04
申请人
ETERNIT
发明人
分类号
B28B21/90
主分类号
B28B21/90
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代理人
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